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0.11. HOBBS 85 T. P. WHELAN.

LEASE ROD FOR LOOMSY.

No. 401,351. Patented Apr. 16, 1889.

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UNITED STATES PATENT FFICE.

CHARLES H. HOBBS AND TIMOTHY P. IVHELAN, OF SLATERSVILLE, RHODE ISLAND.

LEASE-ROD FOR LOOMS.

SPECIFICATION forming part of Letters Patent No. 401,351, dated April16, 1889.

Application filed October 23, 1888. erial No. 238,909. (No model.)

T 0 (all whom it may concern.-

Be it known that we, CHARLES H. l-IoBBs and TIMOTHY P. WHELAN, ofSlatersville, county of Providence, State of Rhode Island, have inventedan Improvement in Lease- Rods for Looms, of which the followingdescript-ion, in connection with the accompanying drawings, is aspecification, like letters on the drawings representing like parts.

In the manufacture of cloth upon looms the warp between the harnessesand the roll or beam immediately above the let-off is separated intolayers by means of what is known as a lease-rod. This rod is usuallycomposed of a bar oval in crosssection.

In accordance with our invent-ion we have provided a lease-rod which isexpansible or so constructed that it normally exerts tension upon andkeeps the warp-threads strained between the roller or other beam abovethe warp-beam and the crossing of the warps at the rear of the harnessesor the reed.

Our invention consists, essentially, in an expansible lease-rod composedof two bars hinged or jointed together at their edges and combined witha spring, as will be described.

Figure 1 shows one of our improved expansible lease-rods in position ina warp sup posed to be on its way to the harnesses to be woven intocloth. Fig. 2 is a front view of the lease-rod withoutthe warps; andFig. 3 is a modification, to be described.

Our improved eXpansiblelease-rod as herein shown is composed of twobars, a, Z), which in the form in which our invention is hereinillustrated are connected together along one edge by hinges c c,- thepintle connecting the halves of the said hinges being composed of aspring-wire, (1, having its ends (1 (1 extended to bear respectivelyupon the bars a h. The said pintle constitutes a spring which normallyacts to separate the two bars; but, instead of making the spring alsoserve for apintle, we may apply a spiral spring, as e, to the rod f,connected with the bar I), the ends of the spring resting, respectively,against the bars a b. That end of the rod f which is not connected tothe bar will be provided with a shoulder or projection, as f, to act asa limiting-stop to control the extent of separation of the two membersof the lease-rod.

In Fig. 1 the full and dotted lines show the lease-rod in differentpositions that it assumes during the operation of the loom, the leaserodclosing upon itself more or less as the reed meets the fell of thecloth, the extent of closing movement of the lease-rod depending uponthe blow of the reed and the tension exerted upon the warp. As soon asthe reed retires from the fell of the cloth the spring which controlsthe separation or expansion of the lease-rod acts to take up any undueslack in the warps w.

In the drawings, 0* is supposed to represent a roll or bar or a whiproll above an ordinary let-off or warp-beam; or it might be a Warpbeam,provided the lease-rod was to be used in a warping-machine.

The end of the bar 5 is extended and provided with holes h in order thatthe lease-rod may be retained in any usual position substantially atright angles to the movement of the warp through the loom or warpingmachine.

WVe do not desire to limit our invention to the exact construction ofour expansible leaserod, .as the same may be variously modified, as willbe apparent to any mechanic, so that the two main parts thereof willcontract and then expand according to the amount of tension put upon thewarp -threads between which the lease-rod is placed and held.

W'e claim The two bars hinged together at their edges to form alease-rod and a spring to normally separate the said bars to act uponthe warpthreads, substantially as described.

In testimony whereof we have signed our names to thisspecification inthe presence of two subscribing witnesses.

C. H. HOBBS. TIMOTHY P. IVHELAN.

W'itnesses ARCHIE M. CLARKE, WM. H. SANDFORD.

